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2021.02.24 ~ 2021.06.25
  • 杭州师范大学
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第3次开课

开始:2021-02-24

截止:2021-06-25

课程已进行至

18/18周

成绩预发布时间 2021-06-22

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Space walk

By 陈忆玮 老师 2021-06-11 1869次浏览

What are the possible dangers an astronaut might encounter when he is trying to acomplish a space mission?

70 回复

  • 英听说A37李宗桓 2021-06-16

    There’s always the constant danger of floating away into space due to the lack of gravity .Liquids within the body are no longer affected by gravity, the pressure of the heart and blood vessels often pushes the blood to the astronaut’s body and heart. This causes the veins of the neck and face to stand out more than usual. The astronauts may also suffer from headaches. Astronauts can also suffer from illnesses such as “space sickness” or ‘space adaptation syndrome’.

    回复
  • 童可 2021-06-17

    1. The sealed capsule or spacesuit is broken by space garbage, resulting in oxygen leakage

    2. The failure of the space capsule made the astronauts unable to support their lives and wait for rescue

    3. In the process of launch and return, the failure of launch vehicle or spacecraft leads to the failure of launch or return

    4. Can't rule out being attacked by high-level life in the universe

    回复
  • 余恩丽A38 2021-06-17

    The cosmic environment is extremely bad. The main factors harmful to human body are high vacuum, high hypoxia, cosmic radiation, temperature difference and so on. These adverse factors will cause serious harm to human body. Damage to suits can kill people. In space, their bodies will expand and cause serious diseases.

    回复
  • 楼婧怡 2021-06-17

    Despite the peaceful appearance,the vacuum of space is a hostile environment .Lacking oxygen And filled with radiation and filled with radiation ,the person will experience number of terrible physical damages and become unconscious within seconds.Meanwhile,the lack of air pressure would induce the blood and other liquids in the body to boil,which would also cause the expansion of the body's tissues .Besides,temperature would also be a factor ,with the astronaut possibly freezing or burning depending upon his or her location in relation to the song.

    回复
  • A39李佳静 2021-06-18

    Despite the peaceful appearance,the vacuum of space is a hostile environment .Lacking oxygen And filled with radiation and filled with radiation ,the person will experience number of terrible physical damages and become unconscious within seconds.Meanwhile,the lack of air pressure would induce the blood and other liquids in the body to boil,which would also cause the expansion of the body's tissues .Besides,temperature would also be a factor ,with the astronaut possibly freezing or burning depending upon his or her location in relation to the song.

    回复
  • 林小媚 2021-06-19

    There’s always the constant danger of floating away into space due to the lack of gravity . The vacuum of space is a hostile environment . Lacking oxygen and filled with radiation ,the person will experience number of terrible physical damages the pressure of the heart and blood vessels often pushes the blood to the astronaut’s body and heart. This causes the veins of the neck and face to stand out more than usual and eyes become red and swllowen. The astronauts may also suffer from headaches. Astronauts can also suffer from illnesses such as “space sickness” or ‘space adaptation syndrome’.

    回复
  • 翟雅慧 2021-06-19

    The vacuum of space is a hostile environment. First, a human being without spacesuit will experience enormous pains because of terrible pyhysical dameges caused by lacking oxygen and filled with radiation. Second, the weightlessness of space forces astronauts to work in pair, tied to the soacecraft to aviod floating away. Besids, The lack of gravity blocks the blood circulate and causes the veins of neck and face swollen. Astronaurs may also suffer from headaches and dizziness, as well as many other mental illnesses.

    回复
  • 制药201张益城 2021-06-19

    The cosmic environment is extremely bad. The main factors harmful to human body are high vacuum, high hypoxia, cosmic radiation, temperature difference and so on. These adverse factors will cause serious harm to human body. Damage to suits can kill people. In space, their bodies will expand and cause serious diseases.

    回复
  • 刘金涛 2021-06-19

    A completely weightless environment would hamper astronauts' movement;There's a lot of space junk in the universe;There is a huge amount of nuclear radiation in space.

    回复
  • 郑贾娜 2021-06-19

    The vacuum of space is a hostile environment,if a human being were to step outside of a spacecraft without protection, he or she would experience any number of terrible physical damages. The lack of air pressure would induce the blood and other liquids in body to boil, which would also cause the expansion of the body's tissues.Temperature would also be a factor, with the astronaut possibly freezing or burning depending upon his or her location in relation to the sun. In addition, he or she would be exposed to radiation, which can cause damage to any matter.

    回复
  • 刘晓晨 2021-06-19

    The environment of space is extremely dangerous. In outer space gravity does not exist, so there humans bacome weightless and can float away if not connected to something solid. In additon, space is almost a perfect vaccum, empty of the precious oxygen we need to survive. It's also full of harmful radiation which can severely damage human tissue.

    回复
  • 应瀚锋 2021-06-19

    1. The capsule or spacesuit is breached by space debris, causing oxygen to leak 2. The capsule malfunctions, leaving the astronauts unable to sustain life and waiting for rescue. . . . . 3. During launch and return, failure of a launch vehicle or spacecraft, failure to launch or return (spacecraft disintegrated, exploded, parachute not opened, failed to launch to intended orbit, significant deviation from re-entry...)4. Do Not rule out being attacked by high-grade life in the univers

    回复
  • 沈秋媛 2021-06-19

    The vacuum of space is a hostile enviroment. Lacking oxygen and filled with radiation, if a human being were to step outside of a spacecraft without protection, he or she would experience any number of terrible physical damages. The lack of air pressure would induce the blood and other liquids in the body to boil, which also cause the expansion of the body's tissues. Temperature would also be a factor, with the astronaut possibly freezing or burning depending upon his or her location in relation to the sun. In addition, he or she would be exposed to radiation, which in large amounts can cause damage to any matter——particularly living tissue.

    回复
  • 王文菊 2021-06-19

    1、The lack of air pressure would induce the blood and other liquids in body to boil, which would also cause the expansion of the body's tissues.

    2、Temperature would also be a factor, with the astronaut possibly freezing or burning depending upon his or her location in relation to the sun.

    3、 He  would be exposed to radiation.

    回复
  • A39龚作为 2021-06-19

    Firstly,without oxygen and heat ,the human may dead at any time  if they get out of the capsule .Secondly, if the engine of the spaceship suddenly "failed",the spaceship will trap in the universe and never return to earth.Thirdly, the space trash is all over the universe ,which my hit the spaceship ,causing the accident.

    回复
  • 殷美婷 2021-06-20

    Despite the peaceful appearance,the vacuum of space is a hostile environment .Lacking oxygen And filled with radiation and filled with radiation ,the person will experience number of terrible physical damages and become unconscious within seconds.Meanwhile,the lack of air pressure would induce the blood and other liquids in the body to boil,which would also cause the expansion of the body's tissues .Besides,temperature would also be a factor ,with the astronaut possibly freezing or burning depending upon his or her location in relation to the song.

    回复
  • A37王少钦 2021-06-20

    The vacuum of space is a hostile environment. First of all, if a person steps out of a spacecraft without protection, he or she will be life-threatening. Lack of air pressure can cause blood and other fluids in the body to boil, which can also cause body tissues to swell. Temperature is also a factor, and the astronaut may freeze or burn, depending on his or her position towards the sun. In addition, he or she will be exposed to terrible radiation, which can cause physical harm.

    回复
  • 徐又媛 2021-06-20

    The vacuum of space is a hostile environment . The sealed capsule or spacesuit is broken by space garbage, resulting in lacking oxygen .

    In the process of launch and return, the failure of launch vehicle or spacecraft leads to the failure of launch or return.

    Can't rule out being attacked by high-level life in the universe.

    Temperature is also a factor, and the astronaut may freeze or burn, depending on his or her position towards the sun.

    回复
  • 章紫源 2021-06-20

    1.lacking gravity.

    2.hostile environment.

    3.harmful radiation.

    4.the extreme temperature.

    回复
  • 数学202赵哲硕 2021-06-20

    The vacuum of space is a hostile environment. First, a human being without spacesuit will experience enormous pains because of terrible pyhysical dameges caused by lacking oxygen and filled with radiation. Second, the weightlessness of space forces astronauts to work in pair, tied to the soacecraft to aviod floating away. Besids, The lack of gravity blocks the blood circulate and causes the veins of neck and face swollen. Astronaurs may also suffer from headaches and dizziness, as well as many other mental illnesses.

    回复
  • 胡雯瑜 2021-06-20

    Because space is in a vacuum, there is no atmosphere to protect it, and the temperature varies a lot. The temperature can be more than 100℃ when the sun shines, and there are various radiation and micrometeoroids that can harm the human body. At the same time, the human body inhales a certain amount of nitrogen, and if an astronaut bursts out of the capsule, an air plug can block blood vessels and cause serious illness.
     

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  • 马慧杰 2021-06-20

    The vacuum of space is a hostile environment.First,the person would become unconscious within seconds because of the lack of oxygen to the brain.Second,temperature would also be a factor, with the astronaut possibly freezing or burning depending upon his or her location in relation to the sun. In addition, he or she would be exposed to radiation, which in large amounts can cause damage to any matter_particularly living tissue.Finally,there's always the constant danger of floating away into space due to the lack of gravity. 

    回复
  • 梁洁 2021-06-20

    The astronaut will encounter the vacuum of space .Lacking oxygen and filled with radiation, they would experience any number of terrible physical damages. They possibly be freezing or burning .There’s always the constant danger of floating away into space due to the lack of gravity. The pressure of the heart and blood vessels often pushes the blood to the astronaut’s body and head. This causes the veins of the neck and face to stand out more than usual, and the eyes to become red and swollen. They may suffer from headaches known as “puffy face syndrome”or other illnesses such as “space sickness”or “space adaptation syndrome.”

    回复
  • A39杨凤玲 2021-06-20

    The vaccum of space is a hostile environment. Lack of oxygen and willed with radiation , if a peoson being were to step outside of a spacecraft without protection, he or she would experience any number of terrible physical damages.The lack of pressure would induce the blood and other liquid in the body to boil. In addition the weightness of space create its own challenges and they may must face puffy face syndrome.

    回复
  • A39杨凤玲 2021-06-20

    The vaccum of space is a hostile environment. Lack of oxygen and willed with radiation , if a peoson being were to step outside of a spacecraft without protection, he or she would experience any number of terrible physical damages.The lack of pressure would induce the blood and other liquid in the body to boil. In addition the weightness of space create its own challenges and they may must face puffy face syndrome.

    回复
  • 王平 2021-06-20

    Despite the peaceful appearance,the vacuum of space is a hostile environment .Lacking oxygen And filled with radiation and filled with radiation ,the person will experience number of terrible physical damages and become unconscious within seconds.Meanwhile,the lack of air pressure would induce the blood and other liquids in the body to boil,which would also cause the expansion of the body's tissues .Besides,temperature would also be a factor ,with the astronaut possibly freezing or burning depending upon his or her location in relation to the song.

    回复
  • 方胤杰 2021-06-21

    There’s always the constant danger of floating away into space due to the lack of gravity .Liquids within the body are no longer affected by gravity, the pressure of the heart and blood vessels often pushes the blood to the astronaut’s body and heart. This causes the veins of the neck and face to stand out more than usual. The astronauts may also suffer from headaches. Astronauts can also suffer from illnesses such as “space sickness” or ‘space adaptation syndrome’.

    回复
  • 吴畏 2021-06-21

    The cosmic environment is extremely bad. The main factors harmful to human body are high vacuum, high hypoxia, cosmic radiation, temperature difference and so on. These adverse factors will cause serious harm to human body. Damage to suits can kill people. In space, their bodies will expand and cause serious diseases.

    回复
  • 杨喆 2021-06-21

     The vacuum of space is a hostile environment. Lacking oxygen and  air pressure, the astronaut cannot live without Space suit. Besides the astronaut would be exposed to radiation, which in a large amount can cause damage to any matter, particularly living tissue. In addition, the extreme temperature can be  geat dangerous .

    回复
  • 裴如玥 2021-06-21

    The vacuum of space is a hostile environment. First, a human being without spacesuit will experience enormous pains because of terrible pyhysical dameges caused by lacking oxygen and filled with radiation. Second, the weightlessness of space forces astronauts to work in pair, tied to the soacecraft to aviod floating away. Besids, The lack of gravity blocks the blood circulate and causes the veins of neck and face swollen. Astronaurs may also suffer from headaches and dizziness, as well as many other mental illnesses.

    回复

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